Closure fitting



y 1962 I A. F. GREENFIELD 3,034,521

CLOSURE FITTING Filed April 12, 1960 INVENTOR. ANTHONY E G'REE/VF/ELO Di? Arroe/vEY United States Patent 3,034,521 CLOSURE FITTING Anthony Francis Greenfield, 2905 Frederick Ave., Baltimore, Md., assignor of forty percent to Stanley Sollins, Baltimore, Md.

Filed Apr. 12, 1960, Ser. No. 21,726 2 Claims. (Cl. 134-102) This invention relates to a closure fitting, and more particularly to a closure for mounting on a member such as a tank whereby a fluid and gaseous medium can be simultaneously or selectively introduced into the tank for any desired purpose.

Another object of the invention is to provide a closure fitting which includes a cap that is adapted to be connected to the inlet portion of a tank such as a vehicle radiator head, and wherein the closure fitting of the present invention also includes a neck or boss which is adapted to have a water supply line connected thereto, the closure fitting also including a valve adapted to be connected to a source of air under pressure whereby the air, Water and the like can be introduced into the vehicle radiator head in order to facilitate the flushing or cleaning of the Vehicle radiator system.

A further object of the invention is to provide a closure fitting which is extremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this application, and in which like numerals are used to designate like parts throughout the same FIG. 1 is a perspective view illustrating the closure fitting of the present invention.

FIG. 2 is a perspective view looking at the opposite side of FIG. 1, and showing the closure fitting disconnected from the radiator.

FIG. 3 is a vertical sectional view taken of the closure fitting of the present invention and showing the fitting mounted on a member such as a radiator head which is part of the vehicle cooling system.

FIG. 4 is a bottom plan view of the closure fitting of the present invention.

Referring in detail to the drawings, the numeral indicates the closure fitting of the present invention which is shown being used on an enclosure or tank 11 which may be a radiator head that forms part of the radiator cooling system of a vehicle such as an automobile, truck or the like. The tank or head 11 includes an upstanding filling port or neck 12, and the closure fitting 10 includes a cap 13. The cap 13 embodies a flat portion 14 as well as a depending skirt portion 15, and the skirt portion 15 is provided with diametrically opposed lugs 16 that are adapted to engage beneath the flange on the upper end of the neck 12 in order to lock or maintain the cap 1'3 connected to the member 12. The cap 13 is further provided with diametrically opposed finger engaging portions 17 which are adapted to be used for facilitating the manual rotation of the cap 13, as for example when the cap 13 is being removed or replaced from the neck 12.

Arranged contiguous to the lower surface of the flat portion 14 is a sealing disk 18, and the disk 18 includes outer portions 19 which are adapted to form a tight seal at the top of the neck 12 when the cap 13 is in the position shown in FIG. 3.

The numeral 21 indicates a body member which includes a lower threaded end 22 which projects through the fiat portion 14 and through the disk 18, and a lock nut or fastener 23 is arranged in threaded engagement with the portion 22, as shown in FIG. 3. The body member 21 further includes an angularly arranged boss 24 Patented May 15, 1962 ber 21 also includes an upstanding threaded portion 26.

The numeral 27 indicates a bushing which is arranged in threaded engagement with the threaded portion 26 of the body member 21, and the numeral 23 indicates a valve which is arranged contiguous to the bushing 27. The valve 28 has associated therewith a retainer 29, and as shown in the drawings the valve 28 includes a stem 30, a movable shaft or pin 31, and a spring member 32, and the numeral 33 indicates an air hose or line which is adapted to be connected to the valve 28 whereby air under pressure can be selectively introduced down through the body member 21 and into the tank 11. Thus, both a gaseous and fluid medium such as air under pressure and water can be selectively or simultaneously introduced into the radiator of the vehicle in order to facilitate the flushing or cleaning of the radiator. The valve 28 also includes the lower plate 34 which is provided with a central aperture 35 therein, and the plate 34 abuts the upper end of the body member 21.

In FIG. 2, the numeral 36 indicates the cutouts which provide clearance for the lugs 16 so that the cap 13 can be attached or detached as desired.

From the foregoing, it is apparent that there has been provided a device which is especially suitable for use in facilitating the introduction of a fluid or gaseous medium into an enclosure such as a tank. For example, water and air under pressure can be introduced into a tank for any desired reason as, for example, when a tank is to be cleaned or flushed out. The present invention is especially suitable for use on automobile radiators, such as the radiator 11, and when the radiator is to be flushed out or cleaned out, the usual cap is removed, and the cap 13 is positioned on the element 12, as shown in FIG. 3. The lugs 16 are adapted to move downwardly through the cutouts 36 and then by rotating the cap 13 slightly, the lugs 16 will be engaged beneath the flange 21) so as to lock the cap 13 thereon. It is to be noted that the body member or element 21 is permanently secured to the cap 13 as, for example, by means of the nut or fastener 23, and the disk 18 is also fastened to the cap 13, so that when the cap 13 is in place on the element 12 as shown in FIG. 3, for example, the portion 19 of the disk 18 forms a tight seal in order to prevent loss of air pressure or the like. Furthermore, this tight seal serves to insure that water will not inadvertently splash out of the enclosure or radiator.

With the parts arranged as shown in the drawings, the hose 25 is adapted to convey water from a suitable source of supply and this water will pass downwardly through the portion 24 and then down through the portion 22 into the radiator 11 which is being cleaned or flushed out. At the same time air under pressure is adapted to be supplied through the hose 33, and this air will be able to move down through the valve 28 when the spring 32 is compressed and this air can then pass downwardly through the aperture 35 in the plate 34 so that the air can enter the radiator 11. By introducing air under pressure at the same time as the water, the cleaning effect will be greatly increased since the added pressure resulting from the air will help insure that scum, foreign matter, corrosion or the like can be more readily removed or cleaned from the radiator. After the cleaning or flushing job is completed, the hose 33 is disconnected from the valve 28, and the hose 25 is disconnected from the portion 24 and then the cap 13 is disengaged from the element 12 whereby the usual or regular cap can be mounted on the element 12. Thus, the closure fitting 10 can be stored away until it is again needed and the device is constructed so that it will occupy a minimum amountof space for storage or shipment.

The parts can be made of any suitable material or in different shapes or sizes.

The present invention can be used for introducing various types of flushing substances into a tank, radiator or the like. While the device has been described for use in introducing Water and air, it is to be understood that other substances or mediums can be handled or introduced into such tank. Some of the advantages of the present invention are as follows. It will eiiectivel'y and efiiciently flush out a vehicle radiator, oil crank case or r the like, or it can be attached to the fuel tank to thoroughly and efiiciently flush out the tank. The present invention permits a person to flush his own radiator out and the full pressure will be obtained regardless of the hose that is attached thereto. If desired, a plug can be used for closing the top of the valve 28 When the device is not being used. The member 18 prevents accidental loss of air pressure and the air and water are adapted to be introduced simultaneously. The device is quick and easy to use and the device is especially suitable for use in vehicle radiators which use anti-freeze therein. A

pressure gauge, such as the regular pressure gauge of the air supply tank can be used to measure the air pressure. Also, the device is constructed so that no special fittings or adaptors are required in order to secure the member on the tank. The device will fit various makes of vehicles, and the member 18 prevents the water from splashing out when air is introduced so that the user will 7 not get splashed with water or the like.

The present invention may be embodied in other specific forms Without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiment be considered in all respects as illustrative and not restrictive, reference being had to the ap pended claims rather than to the foregoing description to indicate the scope of the invention.

What is claimed is:

1. In a device of the character described, a cap including a flat portion having a depending skirt, diametrically opposed finger engaging portions on said cap, a disk arranged contiguous to' the lower inner surface of said fiat portion, and said disk including an outer sealing portion; a body member including a lower threaded end projecting through said flat portion and through said disk, a fastener abutting said disk and threadedly engaging said lower threaded end, said body further including an upper threaded portion and an angularlyarranged boss, a bushing engaging the upper threaded portion of said body member, a valve mounted in said bushing and including an apertured plate abutting the upper end of said body memher, the valve further including a stem having a spring pressed shaft therein.

2. In a device of the character described, a cap including a flat portion having a depending skirt, diametrically opposed finger engaging portions on said cap, a sealing disk positioned adjacent the lower inner surface of said flat portion, and said disk including an outer sealing portion; abody member including a lower threaded end projecting through said ilat portion and through said disk, a fastener abutting said disk and threadedly engaging said lower threaded end, said body member further including an upper threaded portion and an angularly arranged boss, a bushing engaging the upper threaded portion of saidbody member, a valve arranged in said bushing and said valve embodying a plate, abutting the upper end of said body member, said plate being provided With a central aperture therein, said valve further embodying a stem having a spring pressed shaft therein, said boss adapted to be connected to a source of supply of water, and said valve adapted to be connected to a source of supply of air under pressure.

Lewis June 1, 1926 Cassia June 17, 1958 

